Finding the Fourth Proportional to 13,149,113.78, 19,723,670.67 and 3,564,243.20
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Solution
The fourth proportional to 13,149,113.78, 19,723,670.67 and 3,564,243.20 is: 5,346,364.80
Step by Step Solution
- Step 1: Write the proportion equation
13,149,113.78 : 19,723,670.67 = 3,564,243.20 : x - Step 2: Convert to fraction form
13,149,113.78/19,723,670.67 = 3,564,243.20/x - Step 3: Cross multiply
13,149,113.78x = 19,723,670.67 × 3,564,243.20 - Step 4: Simplify right side
13,149,113.78x = 70,299,959,064,586.95 - Step 5: Solve for x
x = 70,299,959,064,586.95/13,149,113.78 - Step 6: Final answer
x = 5,346,364.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.